TT seems to work, but I don't like 2 to 3 thou offset. It is the machine part on the end of the TT. The TT is flat, rolls flat.

You will see in my signature that I am a rep for Amain. Not trying to give you a hard time, but you seem put out with their not replacing your TT. In all honesty, your video looks at least as good, and maybe better than any TT driven heli I have.

.002-.003 is an almost negligible runout, particularly since the ends of the TT are not machined on the TT, but affixed after the tubes are cut to length.

No hard feelings. It is cool, I respect people's decisions. I did ask for a replacement, would have sent the old TT back. It didn't look like that was an option. I have own two other trex 500 with TT. They did not have 2 to 3 thou offset, that was over 8 years ago. Now acquiring align parts, they seem really cheap. I don't blame amainshobbies for the TT issue. What really irriated me is the person on the phone has ZERO patience. I noticed GrandRc has the same issue. I really miss heliproz, readyheli and ron lund.

~~Enjoying the hobby one flight at a time~~

And depending on the FBL unit you can adjust how the collective feels. Ikon and Brain has collective expo in the advanced menu.
In short of that what was pictured in the previous post works well when done with all flight modes.